The most technically advanced and reliable automatic dump valve available. Correctly adjusted, the valve gives effortless yet controlled hands free ascent as expanding air automatically vents from the suit. Equipped with a manual over-ride system allowing you to vent the suit completely without disturbing your personal buoyancy setting. This valve has the lowest profile with optimum dump rate. It has an improved ratchet feel and is ergonomically designed for ease of use. Mounting patches have been designed for use with this valve and are available.